ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika最新文献

{"title":"Sistem Pengukur Tekanan Darah secara Online untuk Aplikasi Remote Monitoring Kesehatan Jantung","authors":"Sugondo Hadiyoso, Akhmad Alfaruq, Yuyun Siti Rohmah, Rohmat Tulloh","doi":"10.26760/ELKOMIKA.V7I1.1","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V7I1.1","url":null,"abstract":"ABSTRAKPeneitian ini berfokus pada sistem pengukur tekanan darah secara online yang dapat diakses melalui aplikasi Android pada smart phone. Sistem yang diimplementasikan terdiri dari modul Blood Pressure (BP) meter, mikrokontroler, modul Bluetooth dan aplikasi cloud server. Mikrokontroler akan membaca nilai tekanan darah (sistolik/diastolik) dan pulsa jantung kemudian mengirim data tersebut ke smart phone melalui Bluetooth menggunakan protokol UART untuk diteruskan ke cloud server. Pengguna yang memiliki kepentingan dan otorisasi dapat mengakses data tersebut secara online melalui aplikasi iHealth yang terpasang pada smart phone. Dari hasil pengujian, sistem pengukur tekanan darah memiliki nilai toleransi kesalahan 2-5 mmHg. Jarak maksimal pengiriman data melalui Bluetooth adalah 10 meter. Aplikasi iHealth berjalan pada versi Android minimum Ice Cream Sandwich dengan kebutuhan memori RAM sebesar 23 MB.Kata kunci: Tekanan darah, internet, Android, server ABSTRACTThis research focuses on an online blood pressure measuring system that can be accessed through an Android application on a smart phone. The system that is implemented consists of Blood Pressure meter modules, microcontrollers, Bluetooth modules and cloud server applications. The microcontroller will read the blood pressure value (systolic/diastolic) and the heart pulse then sends the data to a smart phone via Bluetooth using UART protocol to be forwarded to the cloud server. Users who have interests and authorizations can access the data online through the iHealth application installed on a smart phone. From the test results, the blood pressure measuring system has an error tolerance value of 2-5 mmHg. The maximum distance of sending data via Bluetooth is 10 meters. The iHealth application runs on the Android version of a minimum of Ice Cream Sandwich with a 23MB RAM memory requirement.Keywords: blood pressure, internet, android, server","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124454763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perancangan dan Analisis LTE Advanced 850 Mhz untuk Meningkatkan Penetrasi Mobile Broadband di Indonesia","authors":"Ade Wahyudin, Muntaqo Alfin Amanaf, I. Ratnasari","doi":"10.26760/ELKOMIKA.V7I1.57","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V7I1.57","url":null,"abstract":"ABSTRAKLayanan mobile broadband LTE telah berkembang di Indonesia, namun penyebarannya belum merata. Selain itu, sumber daya frekuensi semakin terbatas seiring dengan meningkatnya trafik layanan broadband. Maka untuk mengatasi hal tersebut, spektrum frekuensi 850 MHz dapat diterapkan pada teknologi LTE advance untuk meningkatkan penetrasi mobile broadband. Maka, untuk mengukur tingkat penetrasi, sehingga dilakukan perancangan LTE Advance 850 MHz yang dibandingkan dengan LTE 1800 MHz eksisting berdasarkan pedekatan cakupan dan kapasitas jaringan. Perhitungan dan simulasi menghasilkan peningkatan penetrasi cakupan wilayah hingga 65% ketika menerapkan LTE Advanced 850 MHz. Sedangkan pendekatan kapasitas, pada parameter active user, jumlah connected user pada frekuensi 850 MHz mencapai 98% jauh dibandingkan frekuensi 1800 Mhz yang mencapai 91%, serta kualitas sinyal RSRP meningkat 37%-46%Kata kunci: LTE Advanced, 850MHz, Effective Throughput, Active User, Penetrasi, Broadband ABSTRACTLTE mobile broadband services is growing rapidly in Indonesia, however the deployment does not spread evenly, especially in remote area. Moreover, resource of frequency spectrum is limited because of the growth of broadband traffic. Thus, frequency spectrum 850 MHz can be implemented for LTE Advanced to increase mobile broadband penetration. So, to measure LTE penetration level, LTE Advanced 850 MHz design is compared to the existing LTE 1800 MHz by coverage and capacity approachment. According to calculation and simulation, coverage penetration increase up to 65% as LTE Advanecd 850 MHz implemetation. While, the connected user of LTE 850 MHz reach 98% when compared to LTE Advanced 1800 MHz that only reach up to 91% and also signal quality increase up to 37%-46%.Keywords: LTE Advanced, 850MHz, Effective throughput, Active user, Penetration, Broadband","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114560931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simulasi Sistem Otomasi Load Shedding menggunakan Prediksi Beban","authors":"E. Sartika, Rudi Sarjono, Reinaldo Steven Restianto","doi":"10.26760/ELKOMIKA.V7I1.180","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V7I1.180","url":null,"abstract":"ABSTRAKSimulator penggunaan energi listrik sangat membantu dalam perencanaan pasokan listrik secara terus menerus atau perlu pemadaman bila terjadi gangguan. Agar kinerja pembangkit dapat kembali normal, bertahap, dan terencana akibat mengalami gangguan, maka digunakan metoda Load Shedding. Sistem otomasi dibutuhkan untuk merealisasikan metoda Load Shedding, dan melalui simulator dapat mengurangi resiko terhadap kerusakan bila langsung diimplementasikan. PLC digunakan untuk memprediksi beban saat load shedding, sedangkan SCADA digunakan untuk menampilkan prioritas dan status beban. Load shedding 1 adalah tindakan pelepasan beban bila pada salah satu genset mengalami gangguan, sedangkan Load shedding 2 bila pada kedua genset mengalami gangguan. Simulasi sistem load shedding 1 dan 2 berhasil dilakukan pelepasan beban secara otomatis. Setelah pelepasan beban, kapasitas beban yang ditanggung genset sesuai dengan prediksi dari PLC. Terdapat perbedaan hasil antara daya yang diprediksi secara perhitungan dan daya terukur, kemungkinan disebabkan beban masih belum steady saat data diambil.Kata kunci: Otomasi, Simulator, Sistem Load shedding, SCADA, PLC ABSTRACTSimulator of the use of electrical energy is very helpful in planning electricity supply continuously or needs to be suppressed if a disturbance occurs. In order for the generator performance to return to normal, gradual, and planned due to interference, the Load Shedding method is used. Automation systems are needed to realize the Load Shedding method, and through simulators can reduce the risk of damage if implemented immediately. PLC was used to predict load during load shedding, while SCADA was used to display priority and load status. Load shedding 1 was a load release action if one of the generator sets was disrupted, while Load shedding 2 if in both gensets were disrupted. Load system simulation of shedding 1 and 2 was successfully released by load automatically. After the load was released, the load capacity borne by the generator was in accordance with the predictions of the PLC., the load capacity borne by the generator was in accordance with the predictions of the PLC. There was a difference in results between the predicted power and measured power, possibly because the load was stillnot steady when the data was taken. Keywords: Automation, Simulator, Load Shedding System, SCADA, PLC","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131526687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strategi Self-Assembly Paralel pada Swarm Robot","authors":"Nike Syafitri","doi":"10.26760/elkomika.v7i1.138","DOIUrl":"https://doi.org/10.26760/elkomika.v7i1.138","url":null,"abstract":"ABSTRAKDari banyaknya strategi yang diusulkan untuk proses self-assembly pada swarm robotics, hanya beberapa grup riset berkonsentrasi di bidang ini yang mengusulkan proses paralel pada penggabungan antar robot. Tetapi, strategi ini hanya digunakan ketika sebuah robot memerlukan tumpuan dari dua robot atau lebih pada satu waktu. Berdasar pada kebutuhan untuk menyebarkan ratusan hingga ribuan robot pada satu swarm, strategi penggabungan antar robot satu-demi-satu memerlukan waktu yang sangat lama untuk diselesaikan. Di artikel ini, strategi self-assembly antar robot pada suatu swarm secara paralel diusulkan untuk mengurangi waktu proses self-assembly dengan menempatkan sejumlah robot di posisi tertentu. Saat penggabungan, robot-robot ini akan bergerak menempatkan dirinya sesuai dengan posisi akhir yang ditargetkan. Hasil menunjukkan bahwa strategi ini dapat mereduksi waktu proses self-assembly hingga setengah dari waktu yang diperlukan dengan proses penggabungan satu-demi-satu.Kata kunci: swarm robot, self-assembly, proses paralel ABSTRACTDespite the number of strategies proposed for self-assembly process in swarm robotics, only few research groups working in this area have proposed the parallel process of robots assembled each other. However, this strategy only works when a robot needs to be supported by two or more robots in a time. When deploying hundred to thousand robots in a swarm is required, the strategy of robots connecting to the structure of assembled robots in a one-by-one manner requires an extremely long time to accomplish. In this paper, a strategy of parallel selfassembly for robots in a swarm is proposed for reducing the self-assembly process time by placing a number of robots at particular positions. While connecting, they will move to position themselves appropriately to the targeted final structure. Result shows that this strategy can reduce the process of self-assembly time up to half of the time required for one-by-one process.Keywords: swarm robots, self-assembly, parallel process","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130837016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simulator Tekanan Darah: Minimalisasi Pengaruh Laju Inflasi dan Deflasi Terhadap Simulasi Osilasi","authors":"Alfin Darwongso, Fuad Ughi, Siddiq Wahyu Hidayat","doi":"10.26760/ELKOMIKA.V7I1.165","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V7I1.165","url":null,"abstract":"ABSTRAKSimulator tekanan darah biasa digunakan sebagai nilai referensi dalam mengevaluasi tensimeter otomatis (NIBP monitor). Penelitian sebelumnya menunjukkan bahwa simulator tekanan darah dapat dibuat dengan menggunakan micro air pump berbasis motor dc sebagai aktuator. Namun, hasil simulasi yang dihasilkan berbeda untuk setiap merek tensimeter. Hasil analisa menunjukkan bahwa laju inflasi dan deflasi yang berbeda mempengaruhi karakteristik simulasi. Studi ini bertujuan untuk mengembangkan firmware simulator baru berdasarkan nilai pulse width modulation (PWM) dan gradien inflasi-deflasi untuk meminimalkan pengaruh tersebut, sehingga simulator dapat memberikan hasil yang sama untuk berbagai jenis dan merek NIBP monitor. Validasi dengan simulator referensi dan evaluasi dalam kondisi statis dan dinamis menunjukkan simulator yang dikembangkan cukup andal untuk melakukan pemeriksaan awal, termasuk evaluasi pengulangan hasil tensimeter otomatis.Kata kunci: NIBP monitor, PWM, NIBP simulator, gelombang osilasi, lajuinflasi, laju deflasi  ABSTRACTBlood pressure simulators are commonly used as reference values in evaluating NIBP (noninvasive blood pressure) monitors. Prior research shows that an NIBP simulator can be made using dc motor based micro air pump as the actuator. However, the simulator yield different results for different brands of NIBP monitor. The analysis result showed that inflation/deflation rates do affect the simulation’s characteristic. This research aims to develop a new simulator firmware based on pulse width modulation (PWM) values and rising-falling slope to minimize the corresponding effect so that the developed simulator could generate the same result for various types and brands of NIBP monitor. Validation using a reference simulator and evaluation in static and dynamic conditions showed that the developed simulator is reliable enough to do a quick pre-checks, including assessing the repeatability of NIBP monitors.Keywords: NIBP Monitor, PWM, NIBP Simulator, Oscillometric Waveform, Inflation Rate, Deflation Rate","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131001873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kinerja Jaringan Komunikasi Nirkabel Berbasis Xbee pada Topologi Bus, Star dan Mesh","authors":"Faqih Rofii, Fachrudin Hunaini, Shofie Sholawati","doi":"10.26760/ELKOMIKA.V6I3.393","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V6I3.393","url":null,"abstract":"ABSTRAKJaringan sensor nirkabel merupakan perangkat komunikasi yang memiliki kesederhanaan pada prosesor, konsumsi daya rendah, antena dan beberepa detektor. Biaya yang rendah dan fleksibel sangat cocok digunakan untuk berbagai aplikasi monitoring di industri dan lingkungan baik indoor maupun outdoor. Salah satu perangkat transceiver yang banyak digunakan pada saat ini adalah Xbee. Perangkat ini dapat dikonfigurasi sebagai coordinator, router maupun end-device sesuai dengan topologi jaringan yang dibangun. Penelitian ini bertujuan untuk menganalisis kinerja Xbee dengan parameter RSSI, troughput dan delay dengan topologi bus, star, mesh dan hybrid pada indoor dan outdoor. Pengukuran dilakukan dalam rentang jarak 0-40 meter pada kondisi indoor dan 0-120 meter pada kondisi outdoor. Berdasarkan hasil pengujian pada indoor dan outdoor, nilai optimum diperoleh pada topologi mesh dengan delay dan packet loss terkecil sebesar 2,7 detik dan 0,5 paket untuk indoor serta 3,41 detik dan 0,33 paket untuk outdoor.Kata kunci: jaringan sensor nirkabel, xbee, topologi bus, star dan mesh ABSTRACTWireless sensor networks are communication devices that have simplicity in the processor, low power consumption, antennas and some detectors. Low and flexible costs are suitable for various monitoring applications in the industry and environment both indoors and outdoors. One of the transceiver devices that is widely used today is Xbee. This device can be configured as a coordinator, router or end-device in accordance with the network topology that is built. This study aims to analyze the performance of Xbee with RSSI parameters, throughput and delay with bus, star, mesh and hybrid topologies in indoor and outdoor. Measurements are carried out in the range of 0-40 meters in indoor conditions and 0-120 meters in outdoor conditions. Based on the results of testing on indoor and outdoor, the optimum value was obtained in mesh topology with the smallest delay and packet loss of 2.7 seconds and 0.5 packets for indoor and 3.41 seconds and 0.33 packets for outdoor.Keywords: wireless sensor network, xbee, bus, star and mesh network topology","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121040090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sistem Perekam Detak Jantung Berbasis Pulse Heart Rate Sensor pada Jari Tangan","authors":"H. Rachmat, Dienar Rasmi Ambaransari","doi":"10.26760/elkomika.v6i3.344","DOIUrl":"https://doi.org/10.26760/elkomika.v6i3.344","url":null,"abstract":"ABSTRAKPada studi ini dilakukan rancang bangun sistem perekam detak jantung portabel berbasis pulse heart rate sensor. Studi ini bertujuan untuk mengetahui keakuratan pulse heart rate sensor dalam mendeteksi detak jantung pada jari tangan, dimana tahap selanjutnya sistem ini akan digunakan untuk merekam detak jantung pasien seharian dalam kondisi beraktivitas. Sistem ini dirancang menggunakan modul pulse heart rate sensor yang dihubungkan dengan mikrokontroller Arduino Nano. Data detak jantung direkam pada modul SD Card. Hasil pengukuran sistem ini dibandingkan dengan hasil pengukuran alat Oxymeter. Pengujian dilakukan dengan mengukur detak jantung bagian jari tengah dengan alat Oxymeter dan bagian jari telunjuk dengan sistem ini. Pengujian dilakukan masing-masing satu kali pada 2 jari tangan kanan dan tangan kiri dari 30 orang naracoba dengan rentang usia 18-23 tahun. Hasil pengujian menunjukkan rata-rata error akurasi sistem ini adalah 2 bpm terhadap Oxymeter dengan selisih terbesar 5 bpm. Kata kunci: detak jantung, jari tangan, Oxymeter, SD Card, sensor pulse heartrate. ABSTRACTIn this study, we implemented a portable pulse heart rate sensor based heart beat recording system. The goal of this study is to evaluate an accuracy of the sensor for detecting the heart beat on both a right finger and a left finger in order to implement an ambulatory heart beat recording system. The pulse heart rate sensor was connected to an Arduino Nano contoller module to calculate the heart beat. The heart beat was then recorded in a SD Card module. The system’s results were compared to an oxymeter. Thirty healthy young adult volunteers were involved in this study by measuring the heart beat on a middle finger with Oxymeter and on an index finger with our system. The measurement was tested on both hands’s fingers. The results showed that an accuracy of the system is 2 bpm relative to the Oxymeter’s with the biggest difference of 5 bpm.Keywords: fingers, heart rate, Oxymeter, pulse heart rate sensor, SD Card","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131212914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Compressive Sensing Audio Watermarking dengan Metode LWT dan QIM","authors":"Irma Safitri, Nur Ibrahim, Herlambang Yogaswara","doi":"10.26760/elkomika.v6i3.405","DOIUrl":"https://doi.org/10.26760/elkomika.v6i3.405","url":null,"abstract":"ABSTRAKPenelitian ini mengembangkan teknik Compressive Sensing (CS) untuk audio watermarking dengan metode Lifting Wavelet Transform (LWT) dan Quantization Index Modulation (QIM). LWT adalah salah satu teknik mendekomposisi sinyal menjadi 2 sub-band, yaitu sub-band low dan high. QIM adalah suatu metode yang efisien secara komputasi atau perhitungan watermarking dengan menggunakan informasi tambahan. Audio watermarking dilakukan menggunakan file audio dengan format *.wav berdurasi 10 detik dan menggunakan 4 genre musik, yaitu pop, classic, rock, dan metal. Watermark yang disisipkan berupa citra hitam putih dengan format *.bmp yang masing-masing berukuran 32x32 dan 64x64 pixel. Pengujian dilakukan dengan mengukur nilai SNR, ODG, BER, dan PSNR. Audio yang telah disisipkan watermark, diuji ketahanannya dengan diberikan 7 macam serangan berupa LPF, BPF, HPF, MP3 compression, noise, dan echo. Penelitian ini memiliki hasil optimal dengan nilai SNR 85,32 dB, ODG -8,34x10-11, BER 0, dan PSNR ∞.Kata kunci: Audio watermarking, QIM, LWT, Compressive Sensing. ABSTRACTThis research developed Compressive Sensing (CS) technique for audio watermarking using Wavelet Transform (LWT) and Quantization Index Modulation (QIM) methods. LWT is one technique to decompose the signal into 2 sub-bands, namely sub-band low and high. QIM is a computationally efficient method or watermarking calculation using additional information. Audio watermarking was done using audio files with *.wav format duration of 10 seconds and used 4 genres of music, namely pop, classic, rock, and metal. Watermark was inserted in the form of black and white image with *.bmp format each measuring 32x32 and 64x64 pixels. The test was done by measuring the value of SNR, ODG, BER, and PSNR. Audio that had been inserted watermark was tested its durability with given 7 kinds of attacks such as LPF, BPF, HPF, MP3 Compression, Noise, and Echo. This research had optimal result with SNR value of 85.32 dB, ODG value of -8.34x10-11, BER value of 0, and PSNR value of ∞.Keywords: Audio watermarking, QIM, LWT, Compressive Sensing.","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114716221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kendali Logika Fuzzy pada Car Like Mobile Robot (CLMR) Penjejak Garis","authors":"Fahmizal Fahmizal, Budi Bayu Murti, Donny Budi Pratama, Afrizal Mayub","doi":"10.26760/ELKOMIKA.V6I3.451","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V6I3.451","url":null,"abstract":"ABSTRAKMakalah ini memaparkan perancangan sistem kendali logika fuzzy untuk mengatur kecepatan dan arah sudut steering pada car like mobile robot (CLMR) dengan menggunakan metode Ackermann steering. CLMR penjejak garis dirancang menggunakan 16 buah photodiode, dan terdapat 7 buah membership fuzzfikasi dari pembacaan error dan last error sehingga terbentuk 49 aturan. Untuk menguji perfoma kendali fuzzy pada sistem CLMR dalam mengikuti lintasan garis maka dilakukan pengujian dengan bentuk lintasan berupa garis lurus dan berbelok serta zig-zag dalam satu lintasan putar. Proses variasi nilai keanggotaan fuzzifikasi masukan dan defuzzifikasi keluaran dilakukan sebanyak lima kali. Dari hasil pengujian diperoleh bahwa kendali logika fuzzy yang diaplikasikan pada sistem mampu membuat pergerakan CLMR sukses mengikuti lintasan uji selama 9,38 detik lebih baik 0,53 detik dari kendali PID. Selanjutnya, hasil rancangan sistem CLMR ini merupakan sebuah prototipe self-driving car.Kata kunci: car like mobile robot, robot penjejak garis, fuzzy, self-driving car ABSTRACTThis paper describes the design of a fuzzy logic control system to adjust the speed and direction of the angle of the steering on the car like mobile robot (CLMR) using the Ackermann steering method. CLMR line tracking is  designed using 16 photodiode pieces, and there are 7 fuzzfication membership from reading error and last error so that 49 rules are formed. To test the fuzzy control performance on the CLMR system in following the line trajectory, it was tested with the form of a straight line and a turn and a zigzag in a rotary track. The process of varying input membership fuzzification values and output defuzzification is done five times. From the test results, it was found that the fuzzy logic control applied to the system was able to make CLMR movement successfully followed the test path for 9.38 seconds better than 0.53 seconds of PID control. Furthermore, the results of the CLMR system design are a prototype self-driving car.Keywords: car like mobile robot, line tracking robot, fuzzy, self-driving car","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125562214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perencanaan Sistem Proteksi Generator dari Putaran Balik di PLTMH Totabuan","authors":"Teguh Arfianto, Nasrun Hariyanto, Delfan Tonius Sitohang","doi":"10.26760/ELKOMIKA.V6I3.436","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V6I3.436","url":null,"abstract":"ABSTRAKPada penelitian ini penulis melakukan perhitungan, simulasi dengan aplikasi ETAP 12.6.0 kemudian membandingkan hasil simulasi dengan standar PLN. Pada setting relay daya balik penulis menerapkan standart IEEE C37.102-2006, daya balik generator dengan kapasitas 2 x 2,5 MW adalah 50000 watt dengan waktu tunda relay 10 detik. Sedangkan daya balik untuk generator kapasitas 4 x 0,7 MW adalah 14000 watt dengan waktu tunda relay 10 detik. Hasil yang didapat dari simulasi saat terjadi kenaikan tegangan 110% adalah 0,57 detik dan saat 130% adalah 0,105 detik. Sedangkan untuk setting relay tegangan saat terjadi turun tegangan 50% adalah 0,125 detik dan saat 80% adalah 1,25 detik. Hasil simulasi dengan standar PLN tidak jauh berbeda, waktu yang diterapkan PLN ketika naik tegangan 110% adalah 2 detik dan saat 130% adalah 0,1 detik kemudian untuk turun tegangan 50% adalah 0,1 detik dan saat 80% adalah 1 detik.Kata Kunci: Generator, Daya Balik, Proteksi, Setting, Relay ABSTRACTIn this study the authors perform calculations, simulations with software ETAP 12.6.0 and then compare the results of simulation with standard PLN. On setting power relay writer applying standart IEEE C37.102-2006, generator reverse power capacity 2 x 2.5 MW is 50000 watt with relay time delay 10 second. While reverse power for generator capacity 4 x 0,7 MW is 14000 watt with a 10 second delay time. The results obtained from simulation when there is a 110% increase voltage 0.57 seconds and when 130% is 0.105 seconds. As for the setting of voltage relay when there voltage drop of 50% is 0.125 seconds and when 80% is 1.25 seconds. The result of simulation with PLN standard is not much different, the time applied by PLN when the voltage rise of 110% adds 2 seconds and when 130% is 0.1 seconds later to drop the 50% voltage 0.1 second and 80% is 1 second.Keywords: Generator, Reverse Power, Proteksi, Setting, Relay","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124185751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}